Given the root of the quadratic equation of are equal.Express in terms of
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Originally Posted by lindros Given the root of the quadratic equation of are equal.Express in terms of The question tells you that is a square (the square of a linear term) , now try it and if you have further problems post what you have tried or what you do not understand CB
You know the quadratic formula, don't you: The two roots will be equal if and only if the square root is 0. Another way to do this is to write the equation as . Multiply the right side and set corresponding coefficients equal.
Originally Posted by lindros Given the root of the quadratic equation of are equal.Express in terms of Use the following: if are the roots of , then . You can also google "Viete's formulae" Tonio
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